[Bug c/121931] no_sanitize attribute should also apply to global variables

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121931

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This was the doc change:
https://github.com/llvm/llvm-project/commit/2b61d12f1ea5970c128c83a05e5acf2541174c2d

But it looks like it was supported before that.